Various cleanup
I replaced the rgb function with a packed struct, formatted the code, and updated a couple of allocator things to fit Zig v0.9.0.
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@ -23,7 +23,7 @@ pub fn link(b: *std.build.Builder, step: *std.build.LibExeObjStep) void {
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step.linkLibrary(lib);
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}
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fn fromHere(allocator: *std.mem.Allocator, path: []const u8) []const u8 {
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fn fromHere(allocator: std.mem.Allocator, path: []const u8) []const u8 {
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const here = std.fs.path.dirname(@src().file) orelse ".";
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return std.fs.path.join(allocator, &.{here, path}) catch unreachable;
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}
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@ -1,13 +1,16 @@
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const std = @import("std");
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const minifb_c = @cImport({
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const c = @cImport({
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@cInclude("MiniFB.h");
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@cInclude("MiniFB_enums.h");
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});
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const testing = std.testing;
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pub fn rgb(r: u8, g: u8, b: u8) u32 {
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return @intCast(u32, r) << 16 | @intCast(u32, g) << 8 | b;
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}
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pub const Rgb = packed struct {
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r: u8,
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g: u8,
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b: u8,
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_reserved: u8 = 0,
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};
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pub const KeyMod = packed struct {
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shift: bool = false,
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@ -16,20 +19,20 @@ pub const KeyMod = packed struct {
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super: bool = false,
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capsLock: bool = false,
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numLock: bool = false,
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reserved: u26 = 0,
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_reserved: u26 = 0,
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};
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pub fn Window(comptime TUserData: type) type {
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return struct {
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cwin: *minifb_c.mfb_window,
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return packed struct {
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cwin: *c.mfb_window,
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pub const UpdateError = error {
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pub const UpdateError = error{
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InvalidWindow,
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InvalidBuffer,
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InternalError,
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};
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pub const State = enum {ok, exit};
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pub const State = enum { ok, exit };
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pub const OpenFlags = packed struct {
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resizable: bool = false,
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@ -43,104 +46,112 @@ pub fn Window(comptime TUserData: type) type {
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pub fn open(title: [*:0]const u8, width: u32, height: u32, flags: OpenFlags) !Window(TUserData) {
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const intFlags = @bitCast(u32, flags);
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const cTitle = @as([*c]const u8, title);
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const cwin: ?*minifb_c.mfb_window = minifb_c.mfb_open_ex(cTitle, width, height, intFlags);
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const cwin: ?*c.mfb_window = c.mfb_open_ex(cTitle, width, height, intFlags);
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if (cwin) |value| {
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return Window(TUserData) {.cwin=value};
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return Window(TUserData){ .cwin = value };
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} else {
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return error.ItBroke;
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}
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}
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pub fn waitSync(self: Window(TUserData)) bool {
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return minifb_c.mfb_wait_sync(self.cwin);
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return c.mfb_wait_sync(self.cwin);
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}
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pub fn update(self: Window(TUserData), buffer: []u32) UpdateError!State {
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const rawState = minifb_c.mfb_update(self.cwin, buffer.ptr);
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pub fn update(self: Window(TUserData), buffer: []Rgb) UpdateError!State {
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const rawState = c.mfb_update(self.cwin, @ptrCast(*anyopaque, buffer.ptr));
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switch (rawState) {
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.STATE_OK => return State.ok,
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.STATE_EXIT => return State.exit,
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.STATE_INVALID_WINDOW => return UpdateError.InvalidWindow,
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.STATE_INVALID_BUFFER => return UpdateError.InvalidBuffer,
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c.STATE_OK => return State.ok,
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c.STATE_EXIT => return State.exit,
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c.STATE_INVALID_WINDOW => return UpdateError.InvalidWindow,
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c.STATE_INVALID_BUFFER => return UpdateError.InvalidBuffer,
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else => return UpdateError.InternalError,
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}
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}
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pub fn setUserData(self: Window(TUserData), data: *TUserData) void {
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minifb_c.mfb_set_user_data(self.cwin, data);
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c.mfb_set_user_data(self.cwin, data);
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}
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pub fn getUserData(self: Window(TUserData)) ?*TUserData {
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return @ptrCast(?*TUserData, @alignCast(@alignOf(?*TUserData), minifb_c.mfb_get_user_data(self.cwin)));
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}
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test "user data is null if never set" {
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const win = try Window(u8).open("", 100, 100);
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const data = win.getUserData();
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testing.expectEqual(null, data);
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var cData = c.mfb_get_user_data(self.cwin);
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std.log.info("@alignOf cwin={d}, addr={x}", .{ @alignOf(@TypeOf(self.cwin)), @ptrToInt(self.cwin) });
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std.log.info("@alignOf cdata={d}, addr={x}", .{ @alignOf(@TypeOf(cData)), @ptrToInt(cData) });
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return @ptrCast(?*TUserData, @alignCast(@alignOf(?*TUserData), cData));
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}
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test "user data is not null if previously set" {
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const win = try Window(u8).open("", 100, 100);
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var data: u8 = 42;
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win.setUserData(&data);
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testing.expectEqual(42, win.getUserData().?.*);
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pub const ActiveFunc = fn (win: Window(TUserData), isActive: bool) void;
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pub fn setActiveCallback(self: Window(TUserData), callback: ActiveFunc) void {
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c.mfb_set_active_callback(self.cwin, @ptrCast(c.mfb_active_func, callback));
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}
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};
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}
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test "user data is null if never set" {
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const win = try Window(u64).open("abc", 100, 100, .{});
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const data = win.getUserData();
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try testing.expectEqual(@as(?*u64, null), data);
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}
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// test "user data is not null if previously set" {
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// const win = try Window(u64).open("abc", 100, 100, .{});
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// var data: u64 = 42;
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// win.setUserData(&data);
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// const expected: u64 = 42;
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// try testing.expectEqual(expected, win.getUserData().?.*);
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// }
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pub fn getTargetFPS() u32 {
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return minifb_c.mfb_get_target_fps();
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return c.mfb_get_target_fps();
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}
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pub fn setTargetFPS(fps: u32) void {
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minifb_c.mfb_set_target_fps(fps);
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c.mfb_set_target_fps(fps);
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}
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// TODO Figure out how to run this once I have Internet access.
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test "set and get target FPS" {
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const max = 40;
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var fps: u32 = 30;
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while (fps < max) {
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setTargetFPS(fps);
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try std.testing.expectEqual(fps, getTargetFPS());
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}
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}
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// test "set and get target FPS" {
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// const max = 40;
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// var fps: u32 = 30;
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// while (fps < max) {
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// setTargetFPS(fps);
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// try std.testing.expectEqual(fps, getTargetFPS());
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// }
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// }
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pub const Timer = struct {
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ctimer: *minifb_c.mfb_timer,
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pub const Timer = extern struct {
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ctimer: *c.mfb_timer,
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pub fn init() !Timer {
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const ctimer: ?*minifb_c.mfb_timer = minifb_c.mfb_timer_create();
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const ctimer: ?*c.mfb_timer = c.mfb_timer_create();
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if (ctimer) |value| {
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return Timer {.ctimer=value};
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return Timer{ .ctimer = value };
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} else {
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return error.ItBroke;
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}
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}
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pub fn deinit(self: Timer) void {
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minifb_c.mfb_timer_destroy(self.ctimer);
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c.mfb_timer_destroy(self.ctimer);
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}
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pub fn reset(self: Timer) void {
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minifb_c.mfb_timer_reset(self.ctimer);
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c.mfb_timer_reset(self.ctimer);
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}
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pub fn now(self: Timer) f64 {
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return minifb_c.mfb_timer_now(self.ctimer);
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return c.mfb_timer_now(self.ctimer);
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}
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pub fn delta(self: Timer) f64 {
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return minifb_c.mfb_timer_delta(self.ctimer);
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return c.mfb_timer_delta(self.ctimer);
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}
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pub fn getFrequency() f64 {
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return minifb_c.mfb_timer_get_frequency();
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return c.mfb_timer_get_frequency();
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}
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pub fn getResolution() f64 {
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return minifb_c.mfb_timer_get_resolution();
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return c.mfb_timer_get_resolution();
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}
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};
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};
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